Combining Texts

Ideas for 'Parmenides', 'Structures and Structuralism in Phil of Maths' and 'An Inquiry into Meaning and Truth'

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2 ideas

4. Formal Logic / C. Predicate Calculus PC / 2. Tools of Predicate Calculus / e. Existential quantifier ∃

16484

There are four experiences that lead us to talk of 'some' things [Russell]

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets

10166

ZFC set theory has only 'pure' sets, without 'urelements' [Reck/Price]